Coeifficient of Friction

[FRICTIONX]

I want to use small metal balls to grip a steel wire that is tin plated.
The metal balls are sliding against the tin plated steel wire.
The balls are forced to impinge on the tin plated wire and grip it.


What material or plating for the balls would be best to have the highest possible Coefficient of Friction.
Also, what about the possibility of using a non-metal ball like hard rubber, ceramic, glass, etc. Thanks

 

[Tmoose]

What happens if the wire is dented by the balls?

How hard is the wire?

Single stand ?

What is the variation in wire diameter?

If you want to really secure the wire or tug on it you may need to use a collet.

 

[FRICTIONX]

Tempered high carbon steel. We do not think the string will be dented. The balls act like the arms of a collet. Mostly wanted feedback on the Coefficient of friction in regards to using different materials such as copper, aluminum, ceramic, brass, hard rubber. Thanks for the feedback.

 

[IRstuff]

Size of balls relative to wire?
How much pull are the balls resisting?
One time thing?
etc.?

TTFN (ta ta for now)
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[dgallup]

Can the balls mark the tin plate? If yes then you could have the balls coated with an abrasive media like sand paper. If not then perhaps a hard rubber would be best. How long do the balls have to last, how fast is the wire running, how much load? Lots of unknowns here.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[3DDave]

The amount of friction depends on how much pressure is applied, so all materials can potentially provide exactly the same amount of friction.

Might as well ask for the slope of a line given a single point.

 

[FRICTIONX]

LinkLooked into coatings, but was told by the companies that the balls were too small to coat. I am leaning toward testing hard rubber.

 

[jdonville]

If you are using steel strand, look into using wedges instead of balls to resist the tension. This arrangement is used in structural applications. Max unfactored load per strand is ~35k. One vendor:

https://www.dsiamerica.com/fileadmi.../dsi-usa-dywidag-strand-anchor-systems-us.pdf